489919542 has 24 divisors (see below), whose sum is σ = 1139813496. Its totient is φ = 139976928.

The previous prime is 489919531. The next prime is 489919561. The reversal of 489919542 is 245919984.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 832903 + ... + 833490.

It is an arithmetic number, because the mean of its divisors is an integer number (47492229).

Almost surely, 2^489919542 is an apocalyptic number.

489919542 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

489919542 is an abundant number, since it is smaller than the sum of its proper divisors (649893954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

489919542 is a wasteful number, since it uses less digits than its factorization.

489919542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666412 (or 1666405 counting only the distinct ones).

The product of its digits is 933120, while the sum is 51.

The square root of 489919542 is about 22134.1261855986. The cubic root of 489919542 is about 788.3303636381.

The spelling of 489919542 in words is "four hundred eighty-nine million, nine hundred nineteen thousand, five hundred forty-two".